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3 years ago

7

If temperature is increased, the number of collisions per second

1 answer:

netineya [11]3 years ago

4 0

Answer:

If the temperature is increased, the average speed and kinetic energy of the gas molecules increase.

Explanation:

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Suppose that X represents an arbitrary cation and that Y represents an anionic species. Using the charges indicated in the super

dmitriy555 [2]

Answer:

See explanation.

Explanation:

Hello!

In this case, when having the cationic and anionic species with the specified charges, in order to abide by the net charge rule, we need to exchange the charges in the form of subscripts and without the sign, just as shown below: $X^{m+}Y^{n-}\rightarrow X_nY_m$

Thus, for all the given combinations, we obtain:

- Y⁻

$X^+Y^-\rightarrow XY\\\\X^{2+}Y^-\rightarrow XY_2\\\\X^{3+}Y^-\rightarrow XY_3$

- Y²⁻

$X^+Y^{2-}\rightarrow X_2Y\\\\X^{2+}Y^{2-}\rightarrow X_2Y_2\rightarrow XY\\\\X^{3+}Y^{2-}\rightarrow X_2Y_3$

- Y³⁻

$X^+Y^{3-}\rightarrow X_3Y\\\\X^{2+}Y^{3-}\rightarrow X_3Y_2 \\\\X^{3+}Y^{3-}\rightarrow X_3Y_3\rightarrow XY$

Best regards!

8 0

3 years ago

Why is water (h2o) considered to be a polar molecule?

Klio2033 [76]

A water molecule, because of its shape, is a polar molecule.

5 0

3 years ago

liz is examing a plant cell under a Microscope she seems many small green oranganelles inside the cell

zmey [24]

It is the chlorophyll/chloroplast. The chlorophyll is the color

4 0

4 years ago

Which of the following is NOT true of a chemical change?

DaniilM [7]

C. the substance only changed form or appearance

the substance changes at a chemical level, not just in appearance

7 0

3 years ago

What information must be specified when a chemist describes the solubility of a solute in water?

Serggg [28]

Answer:

Information that must be specified is the temperature of the solution,Amount of solute,Amount of solvent,and Identity of the solvent.

Explanation:

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4 years ago